Developer tools.
Free, browser-based tools built for integration engineers. No sign-up, no installs, no data sent to any server.
Featured tools
Production-ready utilities, used daily.
DataWeave Engine
Write, test, and debug DataWeave 2.x transformations live in your browser. Syntax highlighting, real-time output, JSON/XML/CSV inputs.
Secure Properties Tool
Encrypt and decrypt MuleSoft secure properties using AES, Blowfish, DES, 3DES. All processing happens in your browser — zero data sent.
More tools
Quick utilities for everyday integration work.
Error Code Lookup
Search 400+ MuleSoft error codes with root causes and fixes.
RAML / OAS Validator
Validate RAML 1.0 and OpenAPI 3.1 specs with line-level annotations.
RAML → OpenAPI 3 Converter
Convert RAML 1.0 to OpenAPI 3.0/3.1 (YAML or JSON) with types mapped to JSON Schema.
OpenAPI 3 → RAML Converter
Convert OpenAPI 3.x into clean RAML 1.0 — schemas become types, paths become nested resources.
RAML Formatter
Pretty-print and normalise RAML 1.0 with consistent indentation — !include and the #%RAML header are preserved.
OpenAPI (OAS) Formatter
Pretty-print OpenAPI 3.x in YAML or JSON, switch between the two, and optionally reorder keys into canonical order.
YAML to JSON Converter
Convert YAML — RAML fragments, Mule config, K8s manifests, OpenAPI — into clean JSON, pretty or minified.
JSON to YAML Converter
Turn JSON payloads and config into readable YAML for Mule properties, manifests, OpenAPI, or CI pipelines.
Cron Expression Builder
Visual cron builder with human-readable preview and next run times.
JSON to DataWeave
Scaffold DataWeave scripts straight from a sample JSON payload.
XML Formatter
Pretty-print, minify, or validate XML — SOAP, config, and Mule payloads.
Base64 Encoder / Decoder
Encode or decode Base64 text and files, with URL-safe mode.
JWT Decoder
Decode and inspect JWT headers, claims, and expiry — with human-readable timing. Nothing is uploaded and signatures are never sent anywhere.
DataWeave 2.0 Cheatsheet
Searchable reference of DataWeave 2.0 operators and core functions, each with a signature and one-line example.